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base.tcc
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base.tcc
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// base.tcc -- base internal interfaces
/* Copyright (C) 2018, 2019, 2020 Alexey Protasov (AKA Alex or rusini)
This file is part of MANOOL.
MANOOL is free software: you can redistribute it and/or modify it under the terms of the version 3 of the GNU General Public License
as published by the Free Software Foundation (and only version 3).
MANOOL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with MANOOL. If not, see <https://www.gnu.org/licenses/>. */
# include "manool.hh"
namespace MNL_AUX_UUID {
namespace aux {
template<typename Expr> MNL_INLINE inline bool match(code &expr)
{ Expr res; return match(expr, res) && (expr = res, true); }
template<typename Expr> MNL_NOINLINE inline bool match(const code &expr, Expr &res)
{ return test<Expr>(expr) ? (res = cast<const Expr &>(expr), true) : res.match(expr); }
MNL_NOINLINE inline bool match(const code &expr, code &res)
{ return res = expr, true; }
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename Value = val> struct expr_lit { MNL_RVALUE()
typename std::remove_cv<typename std::remove_reference<Value>::type>::type value;
MNL_INLINE Value execute(bool = {}) const { return value; }
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_lit<>>(rhs) && test<Value>(cast<const expr_lit<> &>(rhs).value) &&
(value = cast<Value>(cast<const expr_lit<> &>(rhs).value), true);
}
friend bool aux::match<>(const code &, expr_lit &);
};
struct expr_tmp { MNL_LVALUE(true)
int off;
MNL_INLINE val execute(bool = {}) const { return tmp_stk[tmp_frm + off]; }
MNL_INLINE void exec_in(val &&value) const { tmp_stk[tmp_frm + off] = move(value); } // according to tests, better than tmp_stk[tmp_frm + off].swap(value)
MNL_INLINE val exec_out() const { return move(tmp_stk[tmp_frm + off]); }
private:
MNL_INLINE bool match(const code &) { return {}; }
friend bool aux::match<>(const code &, expr_tmp &);
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename Target = code> struct expr_apply0 {
MNL_RVALUE()
Target target; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
auto &&target = this->target.execute();
try { return (move)(target)(0, {}); } catch (...) { trace_execute(_loc); }
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_apply0<>>(rhs) &&
aux::match(cast<const expr_apply0<> &>(rhs).target, target) &&
(_loc = cast<const expr_apply0<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_apply0 &);
};
template<typename Target = code, typename Arg0 = code> struct expr_apply1 {
MNL_LVALUE(target.is_lvalue())
Target target; Arg0 arg0; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
val argv[]{arg0.execute()}; auto &&target = this->target.execute();
try { return (move)(target)(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_execute(_loc); }
}
template<typename Val> MNL_INLINE void exec_in(Val &&value) const {
target.exec_in([&]()->val{
val argv[]{(move)(value), arg0.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_exec_in(_loc); }
}());
}
MNL_INLINE val exec_out() const {
val argv_out[3];
target.exec_in([&]()->val{
val argv[]{{}, arg0.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv, argv_out); } catch (...) { trace_exec_out(_loc); }
}());
return move(argv_out[std::extent<decltype(argv_out)>::value - 1]);
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_apply1<>>(rhs) &&
aux::match(cast<const expr_apply1<> &>(rhs).target, target) &&
aux::match(cast<const expr_apply1<> &>(rhs).arg0, arg0) &&
(_loc = cast<const expr_apply1<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_apply1 &);
};
# define MNL_M(OP, SYM) \
template<typename Arg0 = code> struct expr##OP { \
MNL_RVALUE() \
Arg0 arg0; loc _loc; \
public: \
MNL_INLINE decltype(mnl::OP(arg0.execute())) execute(bool = {}) const { \
auto &&arg0 = this->arg0.execute(); \
try { return mnl::OP((move)(arg0)); } catch (...) { trace_execute(_loc); } \
} \
private: \
MNL_INLINE bool match(const code &rhs) { \
return test<expr_apply1<>>(rhs) && \
test<expr_lit<const sym &>>(cast<const expr_apply1<> &>(rhs).target) && \
cast<const expr_lit<const sym &> &>(cast<const expr_apply1<> &>(rhs).target).value == MNL_SYM(SYM) && \
aux::match(cast<const expr_apply1<> &>(rhs).arg0, arg0) && \
(_loc = cast<const expr_apply1<> &>(rhs)._loc, true); \
} \
friend bool aux::match<>(const code &, expr##OP &); \
}; \
// end # define MNL_M(OP, SYM)
MNL_M(_neg, "Neg") MNL_M(_abs, "Abs") MNL_M(_not, "~")
# undef MNL_M
template<typename Target = code, typename Arg0 = code, typename Arg1 = code> struct expr_apply2 {
MNL_LVALUE(target.is_lvalue())
Target target; Arg0 arg0; Arg1 arg1; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
val argv[]{arg0.execute(), arg1.execute()}; auto &&target = this->target.execute();
try { return (move)(target)(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_execute(_loc); }
}
template<typename Val> MNL_INLINE void exec_in(Val &&value) const {
target.exec_in([&]()->val{
val argv[]{(move)(value), arg0.execute(), arg1.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_exec_in(_loc); }
}());
}
MNL_INLINE val exec_out() const {
val argv_out[4];
target.exec_in([&]()->val{
val argv[]{{}, arg0.execute(), arg1.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv, argv_out); } catch (...) { trace_exec_out(_loc); }
}());
return move(argv_out[std::extent<decltype(argv_out)>::value - 1]);
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_apply2<>>(rhs) &&
aux::match(cast<const expr_apply2<> &>(rhs).target, target) &&
aux::match(cast<const expr_apply2<> &>(rhs).arg0, arg0) &&
aux::match(cast<const expr_apply2<> &>(rhs).arg1, arg1) &&
(_loc = cast<const expr_apply2<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_apply2 &);
};
# define MNL_M(OP, SYM) \
template<typename Arg0 = code, typename Arg1 = code> struct expr##OP { \
MNL_RVALUE() \
Arg0 arg0; Arg1 arg1; loc _loc; \
public: \
MNL_INLINE decltype(mnl::OP(arg0.execute(), arg1.execute())) execute(bool = {}) const { \
auto &&arg0 = this->arg0.execute(); auto &&arg1 = this->arg1.execute(); \
try { return mnl::OP((move)(arg0), (move)(arg1)); } catch (...) { trace_execute(_loc); } \
} \
private: \
MNL_INLINE bool match(const code &rhs) { \
return test<expr_apply2<>>(rhs) && \
test<expr_lit<const sym &>>(cast<const expr_apply2<> &>(rhs).target) && \
cast<const expr_lit<const sym &> &>(cast<const expr_apply2<> &>(rhs).target).value == MNL_SYM(SYM) && \
aux::match(cast<const expr_apply2<> &>(rhs).arg0, arg0) && \
aux::match(cast<const expr_apply2<> &>(rhs).arg1, arg1) && \
(_loc = cast<const expr_apply2<> &>(rhs)._loc, true); \
} \
friend bool aux::match<>(const code &, expr##OP &); \
}; \
// end # define MNL_M(OP, SYM)
MNL_M(_eq, "==") MNL_M(_ne, "<>") MNL_M(_lt, "<") MNL_M(_le, "<=") MNL_M(_gt, ">") MNL_M(_ge, ">=")
MNL_M(_add, "+") MNL_M(_sub, "-") MNL_M(_mul, "*") MNL_M(_xor, "Xor")
# undef MNL_M
template<typename Target = code, typename Arg0 = code, typename Arg1 = code, typename Arg2 = code> struct expr_apply3 {
MNL_LVALUE(target.is_lvalue())
Target target; Arg0 arg0; Arg1 arg1; Arg2 arg2; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
val argv[]{arg0.execute(), arg1.execute(), arg2.execute()}; auto &&target = this->target.execute();
try { return (move)(target)(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_execute(_loc); }
}
template<typename Val> MNL_INLINE void exec_in(Val &&value) const {
target.exec_in([&]()->val{
val argv[]{(move)(value), arg0.execute(), arg1.execute(), arg2.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_exec_in(_loc); }
}());
}
MNL_INLINE val exec_out() const {
val argv_out[5];
target.exec_in([&]()->val{
val argv[]{{}, arg0.execute(), arg1.execute(), arg2.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv, argv_out); } catch (...) { trace_exec_out(_loc); }
}());
return move(argv_out[std::extent<decltype(argv_out)>::value - 1]);
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_apply3<>>(rhs) &&
aux::match(cast<const expr_apply3<> &>(rhs).target, target) &&
aux::match(cast<const expr_apply3<> &>(rhs).arg0, arg0) &&
aux::match(cast<const expr_apply3<> &>(rhs).arg1, arg1) &&
aux::match(cast<const expr_apply3<> &>(rhs).arg2, arg2) &&
(_loc = cast<const expr_apply3<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_apply3 &);
};
template<typename Target = code, typename Arg0 = code, typename Arg1 = code, typename Arg2 = code, typename Arg3 = code> struct expr_apply4 {
MNL_LVALUE(target.is_lvalue())
Target target; Arg0 arg0; Arg1 arg1; Arg2 arg2; Arg3 arg3; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
val argv[]{arg0.execute(), arg1.execute(), arg2.execute(), arg3.execute()}; auto &&target = this->target.execute();
try { return (move)(target)(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_execute(_loc); }
}
template<typename Val> MNL_INLINE void exec_in(Val &&value) const {
target.exec_in([&]()->val{
val argv[]{(move)(value), arg0.execute(), arg1.execute(), arg2.execute(), arg3.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv); } catch (...) { trace_exec_in(_loc); }
}());
}
MNL_INLINE val exec_out() const {
val argv_out[6];
target.exec_in([&]()->val{
val argv[]{{}, arg0.execute(), arg1.execute(), arg2.execute(), arg3.execute(), target.exec_out()};
argv->swap(argv[std::extent<decltype(argv)>::value - 1]);
try { return MNL_SYM("Repl")(std::extent<decltype(argv)>::value, argv, argv_out); } catch (...) { trace_exec_out(_loc); }
}());
return move(argv_out[std::extent<decltype(argv_out)>::value - 1]);
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_apply4<>>(rhs) &&
aux::match(cast<const expr_apply4<> &>(rhs).target, target) &&
aux::match(cast<const expr_apply4<> &>(rhs).arg0, arg0) &&
aux::match(cast<const expr_apply4<> &>(rhs).arg1, arg1) &&
aux::match(cast<const expr_apply4<> &>(rhs).arg2, arg2) &&
aux::match(cast<const expr_apply4<> &>(rhs).arg3, arg3) &&
(_loc = cast<const expr_apply4<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_apply4 &);
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename Dest = code, typename Src = code> struct expr_set { MNL_RVALUE()
Dest dest; Src src;
MNL_INLINE decltype(nullptr) execute(bool = {}) const { dest.exec_in(src.execute()); return {}; }
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_set<>>(rhs) &&
aux::match(cast<const expr_set<> &>(rhs).dest, dest) &&
aux::match(cast<const expr_set<> &>(rhs).src, src);
}
friend bool aux::match<>(const code &, expr_set &);
};
template<typename Dest = code> struct expr_move { MNL_RVALUE()
Dest dest;
MNL_INLINE val execute(bool = {}) const { return dest.exec_out(); }
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_move<>>(rhs) &&
aux::match(cast<const expr_move<> &>(rhs).dest, dest);
}
friend bool aux::match<>(const code &, expr_move &);
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
template<typename Cond = code> struct expr_ifelse {
MNL_LVALUE(body1.is_lvalue() && body2.is_lvalue())
Cond cond; code body1, body2; loc _loc;
public:
MNL_INLINE val execute(bool fast_sig = false) const {
auto &&cond = this->cond.execute();
if (MNL_UNLIKELY(!test<bool>(cond))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
return (cast<bool>(cond) ? body1 : body2).execute(fast_sig);
}
MNL_INLINE void exec_in(val &&value) const {
auto &&cond = this->cond.execute();
if (MNL_UNLIKELY(!test<bool>(cond))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
(cast<bool>(cond) ? body1 : body2).exec_in(move(value));
}
MNL_INLINE val exec_out() const {
auto &&cond = this->cond.execute();
if (MNL_UNLIKELY(!test<bool>(cond))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
return (cast<bool>(cond) ? body1 : body2).exec_out();
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_ifelse<>>(rhs) &&
aux::match(cast<const expr_ifelse<> &>(rhs).cond, cond) &&
aux::match(cast<const expr_ifelse<> &>(rhs).body1, body1) &&
aux::match(cast<const expr_ifelse<> &>(rhs).body2, body2) &&
(_loc = cast<const expr_ifelse<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_ifelse &);
};
template<typename Cond = code> struct expr_if {
MNL_RVALUE()
Cond cond; code body; loc _loc;
public:
MNL_INLINE decltype(nullptr) execute(bool fast_sig = false) const {
auto &&cond = this->cond.execute();
if (MNL_UNLIKELY(!test<bool>(cond))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
if (cast<bool>(cond)) body.execute(fast_sig);
return {};
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_if<>>(rhs) &&
aux::match(cast<const expr_if<> &>(rhs).cond, cond) &&
aux::match(cast<const expr_if<> &>(rhs).body, body) &&
(_loc = cast<const expr_if<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_if &);
};
template<typename Arg0 = code> struct expr_and {
MNL_RVALUE()
Arg0 arg0; code arg1; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
{ auto &&arg0 = this->arg0.execute();
if (MNL_LIKELY(!test<bool>(arg0))) { val argv[]{(move)(arg0), arg1.execute()}; return MNL_SYM("&")(_loc, 2, argv); }
if (!cast<bool>(arg0)) return false;
}
return [&]()->val{ // RVO
auto arg1 = this->arg1.execute(); // NRVO
if (MNL_UNLIKELY(!test<bool>(arg1))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
return arg1;
}();
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_and<>>(rhs) &&
aux::match(cast<const expr_and<> &>(rhs).arg0, arg0) &&
aux::match(cast<const expr_and<> &>(rhs).arg1, arg1) &&
(_loc = cast<const expr_and<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_and &);
};
template<typename Arg0 = code> struct expr_or {
MNL_RVALUE()
Arg0 arg0; code arg1; loc _loc;
public:
MNL_INLINE val execute(bool = {}) const {
{ auto &&arg0 = this->arg0.execute();
if (MNL_LIKELY(!test<bool>(arg0))) { val argv[]{(move)(arg0), arg1.execute()}; return MNL_SYM("|")(_loc, 2, argv); }
if (cast<bool>(arg0)) return true;
}
return [&]()->val{ // RVO
auto arg1 = this->arg1.execute(); // NRVO
if (MNL_UNLIKELY(!test<bool>(arg1))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
return arg1;
}();
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_or<>>(rhs) &&
aux::match(cast<const expr_or<> &>(rhs).arg0, arg0) &&
aux::match(cast<const expr_or<> &>(rhs).arg1, arg1) &&
(_loc = cast<const expr_or<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_or &);
};
template<typename Cond = code> struct expr_while {
MNL_RVALUE()
Cond cond; code body; loc _loc;
public:
MNL_INLINE decltype(nullptr) execute(bool fast_sig = false) const {
for (;;) {
auto &&cond = this->cond.execute(); // no prediction for "cond" on purpose - we admit here performing zero iterations for while-loops may be useful
if (MNL_UNLIKELY(!test<bool>(cond))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
if (!cast<bool>(cond) || MNL_UNLIKELY(body.execute(fast_sig), sig_state.first)) return {};
}
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_while<>>(rhs) &&
aux::match(cast<const expr_while<> &>(rhs).cond, cond) &&
aux::match(cast<const expr_while<> &>(rhs).body, body) &&
(_loc = cast<const expr_while<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_while &);
};
template<typename Key = code> struct expr_on {
MNL_RVALUE()
Key key; code trap, body; loc _loc;
public:
MNL_INLINE val execute(bool fast_sig = false) const {
auto &&key = this->key.execute();
if (MNL_UNLIKELY(!test<sym>(key))) MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
auto res = [&]()->val{ try { return body.execute(true); } // res for NRVO
catch (decltype(sig_state) &sig) { sig_state = move(sig); }
catch (stack_overflow &) { sig_state = {MNL_SYM("StackOverflow"), {}}; }
catch (heap_exhausted &) { sig_state = {MNL_SYM("HeapExhausted"), {}}; }
catch (std::bad_alloc &) { sig_state = {MNL_SYM("LimitExceeded"), {}}; }
catch (std::system_error &) { sig_state = {MNL_SYM("SystemError"), {}}; }
return {};
}();
if (MNL_LIKELY(!sig_state.first)) return res; // no signal
if (MNL_UNLIKELY(sig_state.first == cast<const sym &>(key))) { // caught!
sig_state.first = {}; auto arg = move(sig_state.second); sig_trace.clear();
tmp_stk.push_back(arg); struct _ { MNL_INLINE ~_() { tmp_stk.pop_back(); } } _;
res = trap.execute(fast_sig); return res;
}
if (MNL_LIKELY(fast_sig)) return res; // fast propagation
auto sig = move(sig_state); sig_state.first = {}; throw move(sig); // slow propagation
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_on<>>(rhs) &&
aux::match(cast<const expr_on<> &>(rhs).key, key) &&
aux::match(cast<const expr_on<> &>(rhs).trap, trap) &&
aux::match(cast<const expr_on<> &>(rhs).body, body) &&
(_loc = cast<const expr_on<> &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_on &);
};
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
class object: public _record<> {
public:
shared_ptr<const _record<>> methods; val cleanup;
public:
MNL_INLINE object(const object &rhs) noexcept: _record<>(rhs), methods(rhs.methods), cleanup(rhs.cleanup) {}
MNL_INLINE object(object &&rhs) noexcept: _record<>(move(rhs)), methods(move(rhs.methods)), cleanup(move(rhs.cleanup)) {}
~object();
public:
MNL_INLINE object(const record_descr &descr, const val &cleanup, const shared_ptr<const _record<>> &methods) noexcept
: _record<>{descr}, cleanup(cleanup), methods(methods) {}
MNL_INLINE inline object(_record<> &&, shared_ptr<const _record<>> &&) noexcept;
private:
MNL_INLINE inline val invoke(val &&, const sym &, int argc, val [], val *);
friend box<object>;
};
struct expr_att { MNL_LVALUE(obj.is_lvalue())
code obj, att; loc _loc;
public:
MNL_INLINE val execute(bool) const {
auto obj = this->obj.execute(), att = this->att.execute();
if (MNL_UNLIKELY(!test<sym>(att)))
MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
if (MNL_UNLIKELY(!test<object>(obj)) || MNL_UNLIKELY(!cast<const object &>(obj).has(cast<const sym &>(att))))
MNL_ERR_LOC(_loc, MNL_SYM("KeyLookupFailed"));
return cast<const object &>(obj)[cast<const sym &>(att)];
}
MNL_INLINE void exec_in(val &&value) const {
auto obj = this->obj.exec_out(), att = this->att.execute();
if (MNL_UNLIKELY(!test<sym>(att)))
MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
if (MNL_UNLIKELY(!test<object>(obj)) || MNL_UNLIKELY(!cast<const object &>(obj).has(cast<const sym &>(att))))
MNL_ERR_LOC(_loc, MNL_SYM("KeyLookupFailed"));
if (MNL_UNLIKELY(obj.rc() != 1)) obj = cast<const object &>(obj);
cast<object &>(obj)[cast<const sym &>(att)] = move(value);
this->obj.exec_in(move(obj));
}
MNL_INLINE val exec_out() const {
auto obj = this->obj.exec_out(), att = this->att.execute();
if (MNL_UNLIKELY(!test<sym>(att)))
MNL_ERR_LOC(_loc, MNL_SYM("TypeMismatch"));
if (MNL_UNLIKELY(!test<object>(obj)) || MNL_UNLIKELY(!cast<const object &>(obj).has(cast<const sym &>(att))))
MNL_ERR_LOC(_loc, MNL_SYM("KeyLookupFailed"));
if (MNL_UNLIKELY(obj.rc() != 1)) obj = cast<const object &>(obj);
auto res = move(cast<object &>(obj)[cast<const sym &>(att)]);
this->obj.exec_in(move(obj));
return res;
}
private:
MNL_INLINE bool match(const code &) { return {}; }
friend bool aux::match<>(const code &, expr_att &);
};
struct expr_att_tmp_sym { MNL_LVALUE(true)
expr_tmp obj; expr_lit<const sym &> att; loc _loc;
public:
MNL_INLINE val execute(bool) const {
auto &obj = tmp_stk[tmp_frm + this->obj.off];
if (MNL_UNLIKELY(!test<object>(obj)) || MNL_UNLIKELY(!cast<const object &>(obj).has(att.value)))
MNL_ERR_LOC(_loc, MNL_SYM("KeyLookupFailed"));
return cast<const object &>(obj)[att.value];
}
MNL_INLINE void exec_in(val &&value) const {
auto &obj = tmp_stk[tmp_frm + this->obj.off];
try {
if (MNL_UNLIKELY(!test<object>(obj)) || MNL_UNLIKELY(!cast<const object &>(obj).has(att.value)))
MNL_ERR_LOC(_loc, MNL_SYM("KeyLookupFailed"));
if (MNL_UNLIKELY(obj.rc() != 1)) obj = cast<const object &>(obj);
cast<object &>(obj)[att.value] = move(value);
} catch (...) { obj = {}; throw; }
}
MNL_INLINE val exec_out() const {
auto &obj = tmp_stk[tmp_frm + this->obj.off];
try {
if (MNL_UNLIKELY(!test<object>(obj)) || MNL_UNLIKELY(!cast<const object &>(obj).has(att.value)))
MNL_ERR_LOC(_loc, MNL_SYM("KeyLookupFailed"));
if (MNL_UNLIKELY(obj.rc() != 1)) obj = cast<const object &>(obj);
return move(cast<object &>(obj)[att.value]);
} catch (...) { obj = {}; throw; }
}
private:
MNL_INLINE bool match(const code &rhs) {
return test<expr_att>(rhs) &&
aux::match(cast<const expr_att &>(rhs).obj, obj) &&
aux::match(cast<const expr_att &>(rhs).att, att) &&
(_loc = cast<const expr_att &>(rhs)._loc, true);
}
friend bool aux::match<>(const code &, expr_att_tmp_sym &);
};
} // namespace aux
template<> MNL_INLINE inline box<aux::object>::~box() { while (!dat.items.empty()) dat.items.pop_back(); }
extern template class box<aux::object>;
} // namespace MNL_AUX_UUID